An air outlet structure with adjustable air volume at the bottom of an air duct

Abstract

The application belongs to the technical field of ventilation system manufacturing, and particularly relates to an air outlet structure with adjustable air volume at the bottom of an air duct, which comprises a mounting bottom plate and a switch plate. The mounting bottom plate is provided with an air outlet hole. The switch plate is rotatably arranged on the mounting bottom plate. The rotation shaft of the switch plate is perpendicular to the switch plate. The switch plate is parallel to the mounting bottom plate. The projection of the switch plate on the mounting bottom plate is larger than the projection of the air outlet hole on the mounting bottom plate. The switch plate can be rotated around the rotation shaft to gradually switch from a state of completely covering the air outlet hole to a state of completely uncovering the air outlet hole. The air outlet structure with adjustable air volume at the bottom of the air duct is designed by rotating and twisting the switch plate, and the problem of excessive air resistance is solved.

Description

Technical Field

[0001] This application belongs to the field of ventilation system manufacturing technology, specifically an air outlet structure with adjustable air volume at the bottom of an air duct. Background Technology

[0002] Currently, the airflow volume of the cooling chamber is adjusted by changing the distance between the guide vane at the bottom of the duct and the bottom surface of the duct. Tightening the bolts decreases the distance between the guide vane and the bottom surface of the duct, resulting in a smaller airflow volume; loosening the bolts increases the distance, resulting in a larger airflow volume. The guide vanes come in two widths: approximately 400mm and approximately 100mm. This design forces airflow from the bottom of the duct to bypass the guide vane before exiting, thus increasing air resistance.

[0003] While the current air delivery method for the cold air chamber can adjust the air volume, its structure is too bulky and does not meet the current requirements for lightweight vehicles. Secondly, this structure completely occupies the space at the bottom of the warm air duct, making it impossible to install a maintenance cover and effectively inspect and clean the cold air chamber. Thirdly, this air delivery structure has too much wind resistance, and even if the distance between the deflector and the bottom of the duct is adjusted to the maximum (usually 30mm), insufficient air volume may still occur. Finally, when the duct is undergoing level 5 maintenance, the deflector needs to be replaced, and because the bolts have not been used for a long time, they may have seized and become impossible to remove. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of existing technologies by designing an adjustable air outlet structure at the bottom of the air duct using a rotating and twisting switch plate, thereby solving the problem of excessive air resistance.

[0005] To achieve the above objectives, the following technical solution is adopted: An adjustable air outlet structure at the bottom of a duct includes a mounting base plate and a switch plate. The mounting base plate has an air outlet hole. The switch plate is rotatably mounted on the mounting base plate. The rotation axis of the switch plate is perpendicular to the switch plate, and the switch plate is parallel to the mounting base plate. The shape and size of the projection of the switch plate on the mounting base plate are larger than the shape and size of the projection of the air outlet hole on the mounting base plate. The switch plate can rotate around the rotation axis to gradually switch from a state that completely covers the air outlet hole to a state that completely does not cover the air outlet hole.

[0006] Preferably, the switch plate is circular, the rotating shaft is located at the circular part of the switch plate, and the switch plate is provided with a secondary hole that cooperates with the air outlet. The shape and size of the secondary hole are greater than or equal to the shape and size of the air outlet.

[0007] Preferably, the mounting base plate has four air outlet holes evenly arranged around the rotation axis, and the switch plate has four secondary holes evenly arranged around the rotation axis.

[0008] Preferably, the air outlet includes a first air outlet and a second air outlet. The mounting base plate is evenly divided into four sector-shaped regions centered on the rotation axis. Several first air outlets are arranged in the first and third sector-shaped regions in a clockwise direction, and the extension line of the queue of first air outlets intersects the axis of the rotation axis. Several second air outlets are arranged in the second and fourth sector-shaped regions in a clockwise direction, and the extension line of the queue of second air outlets intersects the center of the switch plate. The first air outlets in the first sector-shaped region are symmetrical to the first air outlets in the third sector-shaped region. The second air outlets in the second sector-shaped region are symmetrical to the second air outlets in the fourth sector-shaped region.

[0009] Preferably, after the first air vent in the first sector area is rotated 90 degrees around the rotation axis, each air vent can be inserted into a gap between the second air vents in the second sector area.

[0010] Preferably, the angle between the air outlet direction of the first air hole and the axis of the rotating shaft is an acute angle with the opening facing away from the switch plate, and the angle between the air outlet direction of the second air hole and the axis of the rotating shaft is an acute angle with the opening facing away from the switch plate.

[0011] Preferably, a limiting block is provided on the side of the switch plate facing the mounting base plate, and an arc-shaped groove is provided on the mounting base plate to cooperate with the limiting block. The arc-shaped groove is located in one of the sector areas, and the center of the virtual circle in which the arc of the arc-shaped groove is located is on the axis of the rotation shaft.

[0012] Preferably, the mounting base plate is provided with scale lines along the arc direction of the arc groove.

[0013] Both the mounting base plate and the switch plate are made of non-metallic materials.

[0014] Compared with the prior art, the beneficial effects of this application are: 1. The air supply structure of this application uses non-metallic materials, and its weight is about 1 / 3 lighter than the original structure.

[0015] 2. It saves floor space in the air duct and allows new adjustable air outlets to be installed on the inspection cover, which not only meets the air supply requirements but also allows for related maintenance and dust removal work.

[0016] 3. The new air supply structure has been proven to have lower wind resistance, which is more conducive to air supply.

[0017] 4. Non-metallic materials are fastened with screws, eliminating the risk of bolts seizing up. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure when the air outlet is open in this application; Figure 2 for Figure 1 Exploded view in the image; Figure 3 This is a schematic diagram of the structure for installing the base plate in this application; Figure 4 Top view of the mounting base plate; Figure 5 for Figure 4 Sectional view of AA in the middle; Figure 6 This is a schematic diagram of the structure when the air outlet is closed in this application.

[0019] The components include: 1. mounting base plate; 2. switch plate; 3. rotating shaft; 4. secondary hole; 5. first air hole; 6. second air hole; 7. fan-shaped area; 8. limit block; 9. arc groove; and 10. scale line. Detailed Implementation

[0020] Reference Figures 1-6 An adjustable air outlet structure at the bottom of a duct includes a mounting base plate 1 and a switch plate 2. The mounting base plate 1 has an air outlet hole. The switch plate 2 is rotatably mounted on the mounting base plate 1. The rotation axis 3 of the switch plate 2 is perpendicular to the switch plate 2 and parallel to the mounting base plate 1. The shape and size of the projection of the switch plate 2 on the mounting base plate 1 are larger than the shape and size of the projection of the air outlet hole on the mounting base plate 1. The switch plate 2 can rotate around the rotation axis 3 to gradually switch from a state that completely covers the air outlet hole to a state that completely does not cover the air outlet hole.

[0021] In this embodiment, during use, the air volume is adjusted by rotating the switch plate 2 to control the size of the air outlet. This design solves the problem of excessive wind resistance.

[0022] As a preferred embodiment, the switch plate 2 is circular, the rotating shaft 3 is located at the circular part of the switch plate, and the switch plate 2 is provided with a secondary hole 4 that mates with the air outlet. The shape and size of the secondary hole 4 are larger than or equal to the shape and size of the air outlet. The efficiency of the air outlet is ensured by ensuring that the shape and size of the secondary hole 4 are larger than or equal to the shape and size of the air outlet.

[0023] As a preferred embodiment, the mounting base plate 1 has four air outlets evenly arranged around the rotating shaft 3, and the switch plate 2 has four secondary holes 4 evenly arranged around the rotating shaft. This arrangement of four air outlets allows for control of airflow efficiency, and the arrangement around the rotating shaft 3 also increases the airflow area.

[0024] In a preferred embodiment, the air outlet includes a first air outlet 5 and a second air outlet 6. The mounting base plate 1 is evenly divided into four sector-shaped regions 7 centered on the rotating shaft 3. Several first air outlets 5 are arranged in the first and third sector-shaped regions 7 in a clockwise direction, and the extension line of the queue of first air outlets 5 intersects the axis of the rotating shaft. Several second air outlets 6 are arranged in the second and fourth sector-shaped regions 7 in a clockwise direction, and the extension line of the queue of second air outlets 6 intersects the center of the switch plate 2. The first air outlets 5 in the first sector-shaped region 7 are centrally symmetrical with those in the third sector-shaped region 7; the second air outlets 6 in the second sector-shaped region 7 are centrally symmetrical with those in the fourth sector-shaped region 7. This arrangement, with the first air outlets 5 and the second air outlets 6 intersecting, makes the airflow more uniform.

[0025] As a preferred embodiment, after the first air vent 5 in the first sector region 7 rotates 90 degrees around the rotation axis, each vent can be inserted into a gap between the second air vents 6 in the second sector region 7. This arrangement facilitates the switch plate 2 to fully open and fully close the air vents.

[0026] As a preferred embodiment, the angle between the air outlet direction of the first air vent 5 and the axis of the rotating shaft 3 is an acute angle with the opening facing away from the switch plate 2, and the angle between the air outlet direction of the second air vent 6 and the axis of the rotating shaft 3 is also an acute angle with the opening facing away from the switch plate 2. This arrangement causes the air outlet direction to expand outward, thereby increasing the air outlet area.

[0027] As a preferred embodiment, the switch plate 2 has a limiting block 8 on the side facing the mounting base plate 1, and the mounting base plate 1 has an arc-shaped groove 9 that cooperates with the limiting block 8. The arc-shaped groove 9 is located in one of the fan-shaped areas 7, and the center of the virtual circle in which the arc of the arc-shaped groove 9 is located is on the axis of the rotating shaft 3.

[0028] As a preferred embodiment, the mounting base plate 1 is provided with scale lines 10 along the arcuate direction of the arcuate groove 9. The size of the air vent opening is identified by setting the scale lines 10.

[0029] In this application, the mounting base plate 1 and the switch plate 2 are connected by a central clip and a side clip (the clips then become the rotating shaft 3, such as...). Figure 2 As shown, the airflow of the vent has 5 levels. When the switch plate 2 is rotated, the level is fixed by moving the limit block 8 on the switch plate 2. The limit block 8 is a manually adjustable switch for easy adjustment.

Claims

1. An air outlet structure with adjustable airflow at the bottom of an air duct, characterized in that, The device includes a mounting base plate (1) and a switch plate (2). The mounting base plate (1) is provided with an air outlet. The switch plate (2) is rotatably mounted on the mounting base plate (1). The rotation axis (3) of the switch plate (2) is perpendicular to the switch plate (2). The switch plate (2) is parallel to the mounting base plate (1). The shape and size of the projection of the switch plate (2) on the mounting base plate (1) are larger than the shape and size of the projection of the air outlet on the mounting base plate (1). The switch plate (2) can rotate around the rotation axis (3) to gradually switch from a state that completely covers the air outlet to a state that does not cover the air outlet.

2. The air outlet structure with adjustable airflow at the bottom of the air duct according to claim 1, characterized in that: The switch plate (2) is circular, and the rotating shaft (3) is located at the circular part of the switch plate. The switch plate (2) is provided with a secondary hole (4) that cooperates with the air outlet. The shape and size of the secondary hole (4) are greater than or equal to the shape and size of the air outlet.

3. The air outlet structure with adjustable airflow at the bottom of the air duct according to claim 2, characterized in that: The mounting base plate (1) has four air outlet holes evenly arranged around the rotating shaft (3), and the switch plate (2) has four secondary holes (4) evenly arranged around the rotating shaft.

4. The air outlet structure with adjustable airflow at the bottom of the air duct according to claim 2, characterized in that: The air outlet includes a first air outlet (5) and a second air outlet (6). The mounting base plate (1) is evenly divided into four fan-shaped areas (7) with the rotating shaft (3) as the center. Several first air outlets (5) are arranged in the first fan-shaped area (7) and the third fan-shaped area (7) in the clockwise direction. The extension line of the queue formed by the first air outlets (5) intersects the axis of the rotating shaft. Several second air holes (6) are provided in the second sector area (7) and the fourth sector area (7) in the clockwise direction. The extension line of the queue formed by the second air holes (6) intersects the center of the switch plate (2). The first air hole (5) in the first sector area (7) is centrally symmetrical with the first air hole (5) in the third sector area (7). The second air hole (6) in the second sector area (7) is centrally symmetrical with the second air hole (6) in the fourth sector area (7).

5. The air outlet structure with adjustable airflow at the bottom of the air duct according to claim 4, characterized in that: After the first air hole (5) in the first sector area (7) rotates 90 degrees around the rotation axis, each air hole can be inserted into a gap between the second air holes (6) in the second sector area (7).

6. The air outlet structure with adjustable airflow at the bottom of the air duct according to claim 5, characterized in that: The angle between the air outlet direction of the first air hole (5) and the axis of the rotating shaft (3) is an acute angle with the opening facing away from the switch plate (2), and the angle between the air outlet direction of the second air hole (6) and the axis of the rotating shaft (3) is an acute angle with the opening facing away from the switch plate (2).

7. The air outlet structure with adjustable airflow at the bottom of the air duct according to claim 5, characterized in that: The switch plate (2) has a limiting block (8) on one side facing the mounting base plate (1). The mounting base plate (1) has an arc groove (9) that cooperates with the limiting block (8). The arc groove (9) is located in one of the fan-shaped areas (7). The center of the virtual circle where the arc of the arc groove (9) is located is on the axis of the rotating shaft (3).

8. The air outlet structure with adjustable airflow at the bottom of the air duct according to claim 7, characterized in that: The mounting base plate (1) is provided with scale lines (10) along the arc direction of the arc groove (9).

Images